//
//  CCVistorView.swift
//  CCweibo
//
//  Created by itcc on 15/11/25.
//  Copyright © 2015年 itcc. All rights reserved.
//

import UIKit

//协议
protocol CCVistorViewDelegate: NSObjectProtocol
{
    //登陆按钮点击
    func vistorViewLoginClick()
    //注册按钮点击
    func vistorViewRegisterClick()
}


//访客视图
class CCVistorView: UIView {
    
    // MARK: - 属性
    ///代理
    weak  var delegate: CCVistorViewDelegate?
    
    override init(frame: CGRect) {
        //super是要在设置普通的存储型属性的下面
        super.init(frame: frame)
        
        //设置背景颜色
        backgroundColor = UIColor(white: 237 / 255.0, alpha: 1)
        
        prepareUI()
    }
    
    
    //MARK: - 按钮点击事件
    func loginClick()
    {
        //通知代理
        delegate?.vistorViewLoginClick()
    }
    
    
    //swift默认所有的view都能通过xib/storyboard加载
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    
    // MARK: - 转轮动画
    func rotationAnimation()
    {
        // 核心动画 旋转
        let rotation = CABasicAnimation(keyPath: "transform.rotation")
        //设置动画参数
        rotation.toValue = 2 * M_PI //360度
        //转动速度
        rotation.duration = 30 //秒
        //重复次数
        rotation.repeatCount = MAXFLOAT
        
        //当不可见的时候 系统会认为动画完成
        rotation.removedOnCompletion = false
        
        //开始核心动画
        iconView.layer.addAnimation(rotation, forKey: "rotation")
    }
    
    // MARK: - 核心动画开始和停止
    ///暂停旋转
    func pauseAnimation()
    {
        //纪录暂停时间
        let pauseTime = iconView.layer.convertTime(CACurrentMediaTime(), fromLayer: nil)
        //设置动画速度为0
        iconView.layer.speed = 0
        //设置动画偏移时间
        iconView.layer.timeOffset = pauseTime
    }
    
    ///恢复旋转
    func resumeAnimation()
    {
        //获取暂停时间
        let pauseTime = iconView.layer.timeOffset
        //设置动画速度为1
        iconView.layer.speed = 1
        iconView.layer.timeOffset = 0
        iconView.layer.beginTime = 0
        
        let timeSincePause = iconView.layer.convertTime(CACurrentMediaTime(), fromLayer: nil) - pauseTime
        iconView.layer.beginTime = timeSincePause
    }
    
    
    // MARK: 设置访客视图的内容
    // imageName 图片名称
    // message 内容
    func setupVistorView(imageName: String, message: String)
    {
        //图片 替换转轮的图片
        iconView.image = UIImage(named: imageName)
        
        //文字
        messageLabel.text = message
        //适应大小
        messageLabel.sizeToFit()
        
        //隐藏小房子
        homeView.hidden = true
        
        //隐藏遮罩
        coverView.hidden = true
        
//        //父控件把子控件 coverView移动到最后面
//        self.sendSubviewToBack(coverView)
//        //父控件把子控件 把coverView移动到最前面
//        self.bringSubviewToFront(coverView)
    }
    
    ///准备UI
    private func prepareUI()
    {
        //1.添加子控件
        addSubview(iconView)
        //添加遮罩
        addSubview(coverView)
        
        addSubview(homeView)
        addSubview(messageLabel)
        addSubview(registerButton)
        addSubview(loginButton)
        
        //2.添加约束 autolayout
        //注：view有父控件后才能设置它的自动布局约束
        //关闭Autoresizing不让它干扰autolayout的约束
        //约束需要添加到view上面
        iconView.translatesAutoresizingMaskIntoConstraints = false
        homeView.translatesAutoresizingMaskIntoConstraints = false
        messageLabel.translatesAutoresizingMaskIntoConstraints = false
        registerButton.translatesAutoresizingMaskIntoConstraints = false
        loginButton.translatesAutoresizingMaskIntoConstraints = false
        coverView.translatesAutoresizingMaskIntoConstraints = false
        
        //创建约束对象
        ///iconView CenterX与父控件的CenterX重合
        //item: 要添加约束的view
        //attribute: 设置的约束
        //relatedBy: Equal
        //toItem: 参照的view
        //attribute: 参照的view的约束
        self.addConstraint(NSLayoutConstraint(item: iconView, attribute: NSLayoutAttribute.CenterX, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.CenterX, multiplier: 1, constant: 0))
    
        ///iconView CenterY与父控件的CenterY重合
        self.addConstraint(NSLayoutConstraint(item: iconView, attribute: NSLayoutAttribute.CenterY, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.CenterY, multiplier: 1, constant: -40))
        
        
        //小房子
        //x
        self.addConstraint(NSLayoutConstraint(item: homeView, attribute: NSLayoutAttribute.CenterX, relatedBy: NSLayoutRelation.Equal, toItem: iconView, attribute: NSLayoutAttribute.CenterX, multiplier: 1, constant: 0))
        //y
        self.addConstraint(NSLayoutConstraint(item: homeView, attribute: NSLayoutAttribute.CenterY, relatedBy: NSLayoutRelation.Equal, toItem: iconView, attribute: NSLayoutAttribute.CenterY, multiplier: 1, constant: 0))
        
        
        //消息label
        //x
        self.addConstraint(NSLayoutConstraint(item: messageLabel, attribute: NSLayoutAttribute.CenterX, relatedBy: NSLayoutRelation.Equal, toItem: iconView, attribute: NSLayoutAttribute.CenterX, multiplier: 1, constant: 0))
        //y
        self.addConstraint(NSLayoutConstraint(item: messageLabel, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: iconView, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 16))
        //宽度约束
        //当toItem == nil的时候 attribute必须设置为NSLayoutAttribute.NotAnAttribute
        self.addConstraint(NSLayoutConstraint(item: messageLabel, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 226))
    
        
        //注册按钮
        //左边和label对齐
        self.addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Left, relatedBy: NSLayoutRelation.Equal, toItem: messageLabel, attribute: NSLayoutAttribute.Left, multiplier: 1, constant: 0))
        //顶部距离label底部16
        self.addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: messageLabel, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 16))
        //宽度
        self.addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 90))
        //高度
        self.addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Height, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 35))
    
        
        //登陆按钮
        //右边和label对齐
        self.addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Right, relatedBy: NSLayoutRelation.Equal, toItem: messageLabel, attribute: NSLayoutAttribute.Right, multiplier: 1, constant: 0))
        //顶部距离label底部16
        self.addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: messageLabel, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 16))
        //宽度
        self.addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 90))
        //高度
        self.addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Height, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 35))
        
        
        //遮罩约束
        //左边
        self.addConstraint(NSLayoutConstraint(item: coverView, attribute: NSLayoutAttribute.Left, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.Left, multiplier: 1, constant: 0))
        //上
        self.addConstraint(NSLayoutConstraint(item: coverView, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.Top, multiplier: 1, constant: 0))
        //右
        self.addConstraint(NSLayoutConstraint(item: coverView, attribute: NSLayoutAttribute.Right, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.Right, multiplier: 1, constant: 0))
        //下
        self.addConstraint(NSLayoutConstraint(item: coverView, attribute: NSLayoutAttribute.Bottom, relatedBy: NSLayoutRelation.Equal, toItem: messageLabel, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))
    }
    
    
    // MARK: - 懒加载
    ///转轮
    private lazy var iconView: UIImageView = UIImageView(image: UIImage(named:"visitordiscover_feed_image_smallicon"))
    
    ///小房子
    private lazy var homeView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_house"))

    ///消息label
    private lazy var messageLabel: UILabel = {
        let label = UILabel()
        
        //设置label的文本
        label.text = "关注一些人，看看有什么惊喜"
        
        label.textColor = UIColor.darkGrayColor()
        
        //让它变成0行
        label.numberOfLines = 0
        
        //根据文本来适应大小
        label.sizeToFit()
        
        return label
    }()
    
    ///注册按钮
    private lazy var registerButton: UIButton = {
        let button = UIButton()
        
        //设置按钮的背景图片
        button.setBackgroundImage(UIImage(named: "common_button_white_disable"), forState: UIControlState.Normal)
        
        //设置按钮文字
        button.setTitle("注册", forState: UIControlState.Normal)
        
        //设置文本颜色
        button.setTitleColor(UIColor.orangeColor(), forState: UIControlState.Normal)
        
        //设置文本大小
        button.titleLabel?.font = UIFont.systemFontOfSize(14)
        
        //根据内容适应大小
        button.sizeToFit()
        
        return button
    }()
    
    ///登陆按钮
    private lazy var loginButton: UIButton = {
        let button = UIButton()
        
        //设置按钮的背景图片
        button.setBackgroundImage(UIImage(named: "common_button_white_disable"), forState: UIControlState.Normal)
        
        //设置按钮文字
        button.setTitle("登陆", forState: UIControlState.Normal)
        
        //设置文本颜色
        button.setTitleColor(UIColor.blackColor(), forState: UIControlState.Normal)
        
        //设置文本大小
        button.titleLabel?.font = UIFont.systemFontOfSize(14)
        
        //根据内容适应大小
        button.sizeToFit()
        
        //添加点击事件
        button.addTarget(self, action: "loginClick", forControlEvents: UIControlEvents.TouchUpInside)
        
        return button
        }()

    ///遮罩视图
    private lazy var coverView: UIImageView = UIImageView(image: UIImage(named:"visitordiscover_feed_mask_smallicon"))
    
    
}























































